Pressure resisting waterproof buoyant container



July 20, 1943. H. H.' LINDLEY 2,324,709

. PRESSURE REsIsTiNG WATERPROOF BuouNT CONTAINER Filed oct. 15', 1942Patented July 2U, 1943 l PRESSURE nEsIs'rING WATERPROOF BUorANTCONTAINER i Harry H. Lindley, Marion, Ind., assgnor to Lindley Box &Paper'Gompany, Marion, Ind., a corporation of indiana Application@ctober 15, 1942, Serial No. 462,117

s crains. (c1. ,en 17) This invention relates to a5 box of pressureresisting and waterproof character.

The chief object of this invention is to provide a container, such asa-box,iwhich is capable of resisting considerable pressure appliedexternally thereto andA which is completely waterproof insofar as thebox contents Ais concernedi The chief feature of the invention consistsin providing an4 inner box in spaced relation to an outer box, bothbeing of considerable pressure resisting character for certain uses, andwith the interior dimensions of the outer box being appreciably largerthan the exterior dimensions of the inner box, thereby formingwacompletely enveloping chamber about the inner box, which chamber isfilled with a waterproof material, the inner box .being suitably spacedfrom the outer box and maintained in such spaced relation by means soarranged that every seam, or crack of the inner box is completelysealed. bythe sealing material or compound employed.

Other objects and features of the invention will be hereinafter setforth moreffully. Y

To appreciate the value of theI present invention, by way ofexplanation, it may be pointed out that a box having the externaldimensions of 3 feet x 3 feet x` 5 feet, ory 45 cubic feet, may contain-fabricated parts for repair and' replacement purposes, or specialtools, etc., valued at fifteen thousand ($15,000.00), dollars. ers ofthis character,` therefore,insure the safe and proper -condition of theaforesaid parts, tools and lthe like at the pointof destination and thecomparative increased costof the present invention compared with thevalue ofthe ccnt'entsis insignificant.

One of the prime objectives ofthe invention is to insure against theloss of man hours of material involved in the container contents. Of

course, if the container is lost in transit,` then Containof thecontainer at a designated location, whether that be below low tide in ariver channel, in a swamp, or the like, thus insuring perfectpreservation ofthe-container contents even though so concealed.. i

The foregoing explanation is given to illustrate the value of saidinvention under present emergency conditions. v

The full nature of thefinvention will be understood from theaccompanying drawing and the following description and claims:

In thedrawing Fig. l is a perspective viewA of theinvention.

Fig. 2 is a sectional view thereof takenon line 2 2 of Fig. 1 and in thedirection of the arrows. i A

Fig. 3` is a central and vertical sectional View taken on line 3--3ofFig. 2 and in the direction of the arrows. i

Fig. 4 is a perspective view of one interior corner of the outer box.

Fig. 5 is a perspective view of the cover of the -inner box.

l ing thereon. Secured to each end and-approxithe objective of theinvention naturally" is defeated. However, containers of this characterhave been subjected to exceptionally severe tests. It has been foundthat sea water fromthe South California coast is more destructive tolmetalthan sea water from other localities, such aslthe Atlantic coastand the like; character has been" subjected to this water and heldsubmerged in a tank thereofand subjected to considerable pressure, theequivalent ofbeing submerged twenty or thirty feetand held there for aWeek, without water penetrationto the contents. Containers cf thischaracter, therefore; will permit lightering with safety betweenVtrans-- port and the shore` VIt will also permit burying A container ofthis Y mately midway between each side thereof is an interior spacingcleat I5, preferably tapered as at I6 and grooved or notched as at I 'l.

Adjacent to the` end of the outer container and suitably secured totheinterior thereof `and on the bottom is another cleat 13 having taperedends` I9 and notched as at 20. Secured to the interior of each sidewallll and adjacent to each end and preferably substantially in alignmentwith the cleat I8 is the cleat; 2| having tapered ends 22 and thenotches 23. .i

The inner container includes the bottom 24, having the seams or cracks25. These seams or cracks register with notches 20. The box `alsoincludes two sides 26 and these sides have the seams or cracks 21.,whicnregister with the notches 23 in the cleats 2l. Ihe box has `the twoendsV 28 and the seams or crack 29 therein register with the` notchesl'l in the end spacing cleat l5.

When the inner box is inserted in the outer box, both being uncovered,or when the inner box with its cover thereon is inserted within theouter box, then uncovered, the result is that the inner suitable masticseal, r the like, 30, which, as will be observed, completely lls thatchamber. The notches or grooves, I1, 20 and 23, insure that thiscompound of asphaltic or like character will seal the entire exteriorsurface of the inner box, except where the exterior surface thereof hasfacial contact with the immediately adjacent confronting face of thespacing cleat, but that surface at the crack or seam, 25, 21 or 29, asthe case may be, is rigidly sealed by the compound that flows into thenotches, 20, 23 and I1. Likewise, the seams at the cornersand theseveral edges of the inside box naturally are fully sealed by the masticcomposition.

Reference will now be had to Fig. 5. In this figure 3l indicates the topof the inner box. It includes the cracks or seams 32 and mounted thereonand externally thereof, as at 33, are the outer box top spacing cleats34, having the notches 35 therethrough.

As previously stated the inner box may be placed within the outer boxand then the contents supplied to the inner box and then the inner boXcover shown in Fig. 5 applied thereto, or the inner box may be lled andcovered and the entire structure then applied to the outer box.

It will be observed that the top edges of the sides and ends of theouter box are spaced at an elevation at least equal to the height ofcleats 34, so that when the inside cover is securely anchored to theinside box, the waterproofing compound may be applied to the chamber andcompletely fill the space between the two boxes, flowing into theseveral notches so as to seal the seams or cracks in the inside box. Thecompound 1` also will be applied over the top of the inner box and to alevel at least sunicient to fill the resulting chamber thereabove afterthe other spaces have been fdled with the mastic. Then, the other cover,designated by the numeral 3S, may be applied.

It will be observed that if the box is of full cleated character, therewill be additional cleats or battens 31 and 38 on the cover and on thebottom of the outside container. Also, the sidewall of the outsidecontainer in addition to the battens I2 may be provided with the battens39. The result is a full cleated box.

Various minor departures may be made, as for example, the notches may beof V-shape or U- shape, while herein the notches are actuallyillustrated as semi-cylindrical in shape.

From the foregoing it will be quite apparent that the inside box isxedly maintained in spaced relation relative to the inside of the outerbox and that the mastic completely encloses the inner box especially atthe seams or cracks. It will also be appreciated that the compositecontainer is of such character, being made of wood, insofar as the innerand outer boxes are concerned, the outer box is quite strong and can besubjected to considerable abuse without breaking and the like, so thatthe box may be handled in a conventional manner and stacked with theothers, or transported like any other wooden box, and the outercontainer protects the intermediate mastic covering from injury.

The inner box is of similar character, but when it is understood thatsea water under pressure exerts that pressure through the cracks andseams through the outer box on to the mastic, the mastic would yieldinwardly if it were not for the presence'of the inner wood box moreparticularly the inherent strength thereof. Thus the or contents of thecomposite box and the strength to resist external pressure application,while the outer box provides the protection to the sealing compositionabout the inner box and prevents injury to or destruction of theenveloping mastic. The resulting container is of exceptionally simpleconstruction, yet embodies all the essentials necessary to withstand theseveral severe uses hereinbefore mentioned.

While the invention has been illustrated and described in great detailin the drawing and foregoing description, the same is to be consideredas illustrative and not restrictive in character.

The several modiiications described herein as well as others which willreadily suggest themselves to perso-ns skilled in this art, all areconsidered to be within the broad scope of the invention, referencebeing had to the appended claims.

The invention claimed is:

1. A pressure resisting completely waterproof composite containerincluding in combination an inner box, an outer box completelyenveloping same and having interior dimensions slightly in excess of thecorresponding exterior dimensions of the inner box, spacing meansbetween the boxes to completely and rigidly space the inner box from theouter box, to maintain such spacing arrangement and to form within theouter box an inner box completely enveloping chamber, and a waterproofsealing material completely lling said enveloping chamber, the inner boxhaving certain walls of multi-part character with a longitudinal seamtherein, each spacing means being arranged in the chamber to expose thecomplete seam to said sealing material for seam sealing purposes.

2. A pressure resisting completely waterproof composite containerincluding in combination an inner box, an outer box completelyenveloping same and having interior dimensions slightly in excess of thecorresponding exterior dimensions of the inner box, spacing meansbetween the 45. boxes to completely and rigidly space the inner innerbox provides the container for the articles box from the outer box, tomaintain such spacing arrangement and to form within the outer box aninner box completely enveloping chamber, and "a waterproof sealingmaterial completely nlling said enveloping chamber, at least one wall ofthe inner box including a longitudinal seam therein, the adjacentspacing means being elongated and extending angularly of and bridgingsaid seam, the inner box confronting face of the last mentioned spacingmeans being relieved in registration with that seam for sealing materialreception and complete seam sealing.

3. A composite container including an inner wooden box, an outer woodenbox having its interior spaced from the inner box and forming therewithan inner box enveloping chamber, a waterproof sealing compositioncompletely lling the enveloping chamber, and cleat spacing meansinterposed between adjacent box walls for forming an enveloping chamberbetween the boxes and immobilizing the inner box within and in spacedrelation to the outer box, certain of the inner box walls including alongitudinal seam, the spacing means being adjacent thereto and rigidwith one of the boxes and having its inner box confronting face relievedin registration with the seam for sealing material reception andcomplete seam sealingl HARRY H. LINDLEY.

